Hugh Pickens DOT Com writes: Computer Scientist Daniel Lemire has had an interesting discussion going on at his site about the ideas in software that are genuinely good and important that are universally recognized as useful. "Let me put it this way: if you were to meet a master of software programming, what are you absolutely sure he will recommend to a kid who wants to become a programmer?" Lemire's list currently includes structured programming; unix and its corresponding philosophy; database transactions; the “relational database”; the graphical user interface; software testing; the most basic data structures (the heap, the hash table, and trees) and a handful of basic algorithms such as quicksort; public-key encryption and cryptographic hashing; high-level programming and typing; and version control. "Maybe you feel that functional and object-oriented programming are essential. Maybe you think that I should include complexity analysis, JavaScript, XML or garbage collection. One can have endless debates but I am trying to narrow it down to an uncontroversial list." Inspired by Lemire, Philip Reames has come up with his own list of "Things every practicing software engineer should aim to know."